Track sander



E. J. GILLIGAN ET AL TRACK SANDER Filed March 5, 1950 MN NN INVENTORS Edu/arri lGiZZLya/w J'lleu 1I. MELeowv l ATTORNEYS Nov. 11, 1930.

Patented Nov.`11, 1930 gIJNITilD?g STATES.

PATENT-clasica EDWARD ,1,G1/LLTIGAN, oncBoToNpN-rrunson,'AND:ALLAN H. MQLEAN, 0F. i. ossIN1NG,NEW Yom; p

TRACK vsiiiymnR c Application mea Maren 5, 1330. serial :195433,363.

i v'This inventionrelatesto track Sanders:

It is among the .objectso the .present inventon to provide a novel and improvedr track-sander particularly adapted for' use-in v connection With locomotives or equivalent rolling stock.

fluidmeans lfor assisting inthe; sand distri-- bution.

A' further object of the present. invention is to provide in a track sander, means' for utilizing the exhaust fluid fof an operating motor rto assist in thedistribution of the SendV .c y

Otherobj ects of the present invention Will belapparent lfromacon sideration of the 'following specilication takengin conjunction- With the accompanyingdrawings, in which i Vligurel l isa longitudinal: vertical .sec- 30 tion of one` form of the. presentpinvention;

Fig/2 is a sectional View taken on the" Fig. 3'fis` ay sectional 'View takenfon the line 3 3 Vof ig.,1.

which *sand `is movedfby' a screw conveyor 11.

veyor eXtend`s,tvhe operation'of the conveyor being adaptedto n'iovesa'nd` from `the boX throughthefnipple"12- The conveyor 11 is provided .With ya central 4channel -lffrom which radiatingl discharge `channelsvM veX- Referring ymore Lp articularly tothe,lclrayvings, it `,Will be seen that the inventionincludes .the provision of a sandbox l0, from"k The box 'l0 llinc'ludesyan externally V40 threaded nipple 41 2, throughwhi'ch'the contend through-thespiral flange of the conveyor. 'The-channel 'ljextends through the shank lof the conveyor and is adapted to receivefcompressed. airA Which'isdischarged through the A`channels'14ste assist in breaking up the sand Within the box', and to, iprovide fluid pressure for discharging'the sand therefrom. The terminal ends-fof. thec'onveyor are provided with eXtendi-ngheads 176, which act jointly With theconveyor spira'illy for ymoving the sand and also iactfto tbneak up any lumps off sand :so that .it mayl be easily conveyed by the :conveyor :flange For rotatingthe lconveyor '1L-5a motor 17 is providedrwhich is'her'e sholwn lto'be Aoperated by vkcompressed air, steam, `or equivalent fluid.,l It is obviously )Within the scope `of theiinvention that ithe motor 17 may, fif wdesired, kbe operated by electricity. i Forrassisting:l in rotating the vconveyor '-11, a: bearing coupling assembly, ,generally 'indicatedby the ynumeral .18, is provided. "Dhecou'pling' 18` removably* receives fthe ,shanklifof @the conveyor lil, as'at 119,:and has sakjlongitudinal bore v20, iwhich communicates'Witha'side bore 2l to deliver fluid from the pipe .22.thr01'1gh,`

the shank 15 of theconveyorito Ethezconveyor anges. K'The coupling assembly isvprovided With suitable'fball bearings' and packing glands to lprovide for `a proper :rotating connection from the motor -17 Eto the conveyor ,10.* A The Wholeassembly is mounted Withinan externally threaded `sleeve -,23.one end kof whichY is arranged .with a vmotor housing 24,-

While the other end isinternallyfthreaded Within' a substantially Y Afixture ,25, cthe-opposite endfof Whichlis associated .withQthe nipple 12 of the boxt 10. yThe .leg 26ofthe :Y2Y5 is provided abend-.discharge Stube' 27,A which may lead to any suitable type o/fsand- Y discharging nozzle as y shovvn.` For assisting in the'discharge of sandrthr'ough the pipe 2,7, a fluid pressure supply pipe 28 is provided associated vxWith'the motor l17 wherebyexhaust uid fromltli Ymotor -imay 4be' 'admitted Vto the pipe 27foi forcing the sand therethrough.

. In the operation of the device, when compressed air is used for the motor, it will be seen that the air under pressure may be admitted through the pipe 29 to the motor, and,

Vat the same time, through the pipe 22 for passage Vto the conveyor 12. The exhaust air from Vthe motor isA led through the pipe 28 to the discharge tube 27 and is thus doubly used iii-'the discharge of sand. It will be understood, of course, that the rotation of the motor 17 eects rotation of the conveyor 41V and thesand is thus' moved through the nipple'l2 and drops by gravity through the leg 26 of the Y 25and is discharged through the pipe 27.Y

When steam is used as the motive fluid for i the motor 17, it will be understoodlthat a charge tubev 27. Y

. Fromthe foregoing it will readily bev seen thatthe present invention provides a novel and .improved track sander.V It is obvious g that the invention is-not confined rto the specific structural details herein set forth. In connection with the invention there may be used Va conventional conveyor screw which is not .provided with the means 'for delivering `fluid `pressure therethrough as herein shown and described. It is also obvious that the invention isnot confined to the specific ar-v rangement of fluid pressure supply for'the motor and for the pipe 27. If desired,ithe

motor may be operated electrically, and a separate steam or air supply may be providedv forthe Vpipe 27. Other changes, modifications, and the full use of equivalents may be resorted to without departing from the spirit or yscope of the invention as outlined in the VVappended claims.

What is claimed is: y Vvl. A track sander, including a sand box, a rotatable conveyor extending from said sandv box, a sand conduit extendingr from saidbox and surrounding` said conveyor,.av

' fluidimotor associated with said conveyor for Vrotating the same, and'means for supplying Huid under-pressure to the sand in said box, '-fl said means comprising fluid passageways in said conveyor. y p v. 2. track sander,including a sandbox, a rotatable conveyorextending from said sand @l box, a sandconduitextendingfromsaid box 'i and surrounding said conveyor, a fluid inotor associated with said conveyor for rotat-V inggthe same,wnieans for supplying fluid underfpressure to the -sandiinsaid box,said

means. comprising iuid passageways in said conveyor, andlluid pressure means for discharging sand through said conduit.

3. A tracksander, including a sand box, a rotatable conveyor extending from said sand box, a sand conduit extending from said box and surrounding said conveyor, a fluid motor associated with said conveyor for rotating the saine', means for supplying fluid under pressure to the sand in said box, said means comprising fluid passageways in said conveyor, and fluid pressure means for discharging sand through said conduit, said means utilizing the exhaust Huid from said motor. u ,y

4. A track sander, including a sandbox, a rotatable conveyor extending from said sand bo-x, a sand conduit extending from said box and surrounding said conveyor, a fluid motor associatedfwith said conveyor for rotating the same, means for supplying fluid under pressure to the sand in said box, said means comprising fluid passageways insaid conveyor, fluid pressure means for discharging sand through said conduit, said'ineans utilizing the exhaust Vfluid from said motor,

and means for delivering fluid under pres-V sure through said conveyor to they sand in said box.

5. Atrack sander, vincluding a sand box, a substantially Y-shaped sand conduit associated therewith, a spiral rotatable sand conveyor extending through said conduit into said box, a Huid motor associated with said conveyor for rotating the same, and means for delivering iuid under pressure through said conveyor to the sandin said box.

6. A'track sander, includinga sand box, a substantially Y-sliaped-sand conduit associated therewith, a spiral rotatable sand Vconveyor extending Vthrough said conduit into said box, a fluid motor associated with said conveyorv for rotating the same, means for delivering fluid under pressure through said conveyor to the sand in said box, and means for delivering exhaust fiuid from said motor to said conduit for assisting inthe discharge of sand therefrom.

7. In a sander, a sand box havingian out# let, a rotatable conveyor in the sand box for moving sand 'to the; outlet,tlie conveyor having a fluid Apassageway with an outlet, and means for supplying fluid underpressure to the fluid passageway. f Y.

8. In a sander, a sand box having an outlet, a` conveyor having a flange for moving sand to the outlet, the conveyor having a fiuid passageway with an outlet inthe flange, andvmeans for supplying `fluid under pressure to the fluid passageway.

9.V In asander, a sand box having an outlet, a conveyor having ya spiral flange for moving sand to the outlet, the conveyor having a fluid passageway with an outletin the Vperiphery of the yspiral flange, and means for supplying fluid under pressureto the fluid passageway. 10. In a sander, a sand box having an outlet, a conveyor in the sand boX for moving sand to the outlet,` a conduit extending from the sand boX outlet, means for supplying fluid under pressure to the sand inthe sand box, said means comprising a Huid passage- Way in the conveyor, and fluid pressure means for discharging sand through said conduit.

` *EDWARD J. GILLIGAN.

ALLAN H. MCLEAN. 

